As we've told you before -- the Hogwarts Express will feature ultra-high-resolution screens to let you see the countryside instead of ugly backstage buildings.

Diagon Alley is due to open by next Summer. But, who knows, maybe it is ahead of schedule. I'm sure many muggles would be exited to ride the Express during the Potter Party in late January. But that could be a trick even Dumbledore might now be able to pull off.